Version 1 (modified by, 9 years ago) (diff)



You will need to install the following Debian packages to run the layout tests. For other distributions, you must install the equivalent packages.

sudo aptitude install curl ruby apache2 libapache2-mod-php5


WebKit functional tests for WebKitGTK+ should be run inside a virtual framebuffer environment. The most common choice for WebKItGTK developers is Xvfb. To start Xvfb simply run:

Xvfb :23 -ac -screen 0 1024x768x16 &

-screen 0 1024x768x16 ensures that Xvfb has a deep enough color depth to produce accurate pixel test results. Some older versions of Ubuntu may have bugs which cause Xvfb to segfault while running tests. A workaround for this is to run Xvfb with the GLX extension disabled:

Xvfb :23 -ac -screen 0 1024x768x16 -extension GLX &


The tests require you to use the testfonts package shared between the QtWebKit and WebKitGTK+ ports. To get this package via git run:

git clone git://

The tests require the WEBKIT_TESTFONTS environment variable to point to the location of this repository on your local machine.

Running the Tests

Simply run the run-webkit-tests script from the WebKitTools directory:

env -i DISPLAY=:23 WEBKIT_TESTFONTS=/home/developer/work/testfonts ./WebKitTools/Scripts/run-webkit-tests --gtk

If you wish to run a single test you can do:

env -i DISPLAY=:23 WEBKIT_TESTFONTS=/home/developer/work/testfonts \
    ./WebKitTools/Scripts/run-webkit-tests --gtk fast/forms/plaintext-mode-1.html

For debugging a test it may be useful to run it directly in DumpRenderTree (with gdb):

WebKitBuild/Debug/Programs/DumpRenderTree -v LayoutTests/fast/forms/plaintext-mode-1.html